<template>
  <div class="app-container">
    <el-form
      :model="form"
      ref="form"
      label-width="100px"
      v-loading="formLoading"
      :rules="rules"
    >
      <el-form-item label="年级：" prop="gradeLevel" required>
        <el-select
          v-model="form.gradeLevel"
          placeholder="年级"
          @change="levelChange"
        >
          <el-option
            v-for="item in levelEnum"
            :key="item.key"
            :value="item.key"
            :label="item.value"
          ></el-option>
        </el-select>
      </el-form-item>
      <el-form-item label="学科：" prop="subjectId" required>
        <el-select v-model="form.subjectId" placeholder="学科">
          <el-option
            v-for="item in subjectFilter"
            :key="item.id"
            :value="item.id"
            :label="item.name + ' ( ' + item.levelName + ' )'"
          ></el-option>
        </el-select>
      </el-form-item>
      <el-form-item label="题干：" prop="title" required>
        <el-input v-model="form.title" @focus="inputClick(form, 'title')" />
      </el-form-item>
      <el-form-item label="答案：" prop="correct" required>
        <el-input v-model="form.correct" @focus="inputClick(form, 'correct')" />
      </el-form-item>
      <el-form-item label="解析：" prop="analyze" required>
        <el-input v-model="form.analyze" @focus="inputClick(form, 'analyze')" />
      </el-form-item>
      <el-form-item label="分数：" prop="score" required>
        <el-input-number
          v-model="form.score"
          :precision="1"
          :step="1"
          :max="100"
        ></el-input-number>
      </el-form-item>
      <el-form-item label="难度：" required>
        <el-rate v-model="form.difficult" class="question-item-rate"></el-rate>
      </el-form-item>
      <el-form-item>
        <el-button type="primary" @click="submitForm">提交</el-button>
        <el-button @click="resetForm">重置</el-button>
        <el-button type="success" @click="showQuestion">预览</el-button>
      </el-form-item>
    </el-form>
    <el-dialog
      :visible.sync="richEditor.dialogVisible"
      append-to-body
      :close-on-click-modal="false"
      style="width: 100%; height: 100%"
      :show-close="false"
      center
    >
      <Ueditor @ready="editorReady" />
      <span slot="footer" class="dialog-footer">
        <el-button type="primary" @click="editorConfirm">确 定</el-button>
        <el-button @click="richEditor.dialogVisible = false">取 消</el-button>
      </span>
    </el-dialog>
  </div>
</template>

<script>
// import QuestionShow from '../components/Show'
import Ueditor from "@/components/Ueditor";
import { mapGetters, mapState, mapActions } from "vuex";
import questionApi from "@/api/question";

export default {
  components: {
    Ueditor,
    // QuestionShow,
  },
  data() {
    return {
      form: {
        id: null,
        questionType: 5,
        gradeLevel: null,
        subjectId: null,
        title: "",
        items: [],
        analyze: "",
        correct: "",
        score: "",
        difficult: 0,
      },
      subjectFilter: null,
      formLoading: false,
      rules: {
        gradeLevel: [
          { required: true, message: "请选择年级", trigger: "change" },
        ],
        subjectId: [
          { required: true, message: "请选择学科", trigger: "change" },
        ],
        title: [{ required: true, message: "请输入题干", trigger: "blur" }],
        correct: [{ required: true, message: "请输入答案", trigger: "blur" }],
        analyze: [{ required: true, message: "请输入解析", trigger: "blur" }],
        score: [{ required: true, message: "请输入分数", trigger: "blur" }],
      },
      richEditor: {
        dialogVisible: false,
        object: null,
        parameterName: "",
        instance: null,
      },
      questionShow: {
        qType: 0,
        dialog: false,
        question: null,
        loading: false,
      },
    };
  },
  created() {
    let id = this.$route.query.id;
    let _this = this;
    this.initSubject(function () {
      _this.subjectFilter = _this.subjects;
    });
    if (id && parseInt(id) !== 0) {
      _this.formLoading = true;
      questionApi.select(id).then((re) => {
        _this.form = re.response;
        _this.formLoading = false;
      });
    }
  },
  methods: {
    editorReady(instance) {
      this.richEditor.instance = instance;
      let currentContent =
        this.richEditor.object[this.richEditor.parameterName];
      this.richEditor.instance.setContent(currentContent);
      // 光标定位到Ueditor
      this.richEditor.instance.focus(true);
    },
    inputClick(object, parameterName) {
      this.richEditor.object = object;
      this.richEditor.parameterName = parameterName;
      this.richEditor.dialogVisible = true;
    },
    editorConfirm() {
      let content = this.richEditor.instance.getContent();
      this.richEditor.object[this.richEditor.parameterName] = content;
      this.richEditor.dialogVisible = false;
    },
    submitForm() {
      let _this = this;
      this.$refs.form.validate((valid) => {
        if (valid) {
          this.formLoading = true;
          questionApi
            .edit(this.form)
            .then((re) => {
              if (re.code === 1) {
                _this.$message.success(re.message);
                _this.delCurrentView(_this).then(() => {
                  _this.$router.push("/exam/question/list");
                });
              } else {
                _this.$message.error(re.message);
                this.formLoading = false;
              }
            })
            .catch((e) => {
              this.formLoading = false;
            });
        } else {
          return false;
        }
      });
    },
    resetForm() {
      let lastId = this.form.id;
      this.$refs["form"].resetFields();
      this.form = {
        id: null,
        questionType: 5,
        gradeLevel: null,
        subjectId: null,
        title: "",
        items: [],
        analyze: "",
        correct: "",
        score: "",
        difficult: 0,
      };
      this.form.id = lastId;
    },
    levelChange() {
      this.form.subjectId = null;
      this.subjectFilter = this.subjects.filter(
        (data) => data.level === this.form.gradeLevel
      );
    },
    showQuestion() {
      this.questionShow.dialog = true;
      this.questionShow.qType = this.form.questionType;
      this.questionShow.question = this.form;
    },
    ...mapActions("exam", { initSubject: "initSubject" }),
    ...mapActions("tagsView", { delCurrentView: "delCurrentView" }),
  },
  computed: {
    ...mapGetters("enumItem", ["enumFormat"]),
    ...mapState("enumItem", {
      questionTypeEnum: (state) => state.exam.question.typeEnum,
      levelEnum: (state) => state.user.levelEnum,
    }),
    ...mapState("exam", { subjects: (state) => state.subjects }),
  },
};
</script>
